9323

• UCREFRP Catalog Number: 9323
• Author: Cooper, D. J. and C. Severn.
• Title: Wetlands of the Ouray National Wildlife Refuge, Utah
• USFW Year: 1994.
• USFW - Doc Type: Hydrology, Water Chemistry, Vegetation, Invertebrate Communities, and Restoration Potential.
• Copyright Material: NO

A common element in upper Colorado River waters is selenium
derived from leaching from marine shale and other sediment in the
region. This element is reported to be toxic to many aquatic
organisms (SSSA 1989). In the study area, only one sample
contained detectable concentrations (>2ug L-1) of Se, this being
station L-1, a ground water sample from a cottonwood riparian
forest (see Figure 1 for the location of L-1). Samples had below
detection limit Se in all surface waters.
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